User login


You are here

Picture frame shear test


 I'm trying to simulate a picture frame shear test using ABAQUS and I have landed up with some problems for which I haven't been able to find any solution from almost a week. Any help would be much appreciated!

So, here's the problem:

I have a fabric sheet of area 140mm x 140mm. The BC are as shown in the file bc.png.The bottom left corner is fixed and a displacement of UX = 40mm and UY = 40mm is applied on the top right corner node.

I have to perform the picture frame shear test such that the edges of this square surface remain straight even after deformation. For this purpose, I decided to use MPC Constraints (link) after going through the help documentation. I got the following problem at the corner slave nodes: 

2 nodes are missing degree of freedoms. The MPC/Equation/kinematic coupling constraints can not be formed. The nodes have been identified in node set ErrNodeMissingDofConstrDef. 

I have attached an image showing the MPC Constraints along with the master nodes.

I realized that the error was caused because these nodes had two master nodes assigned to them and hence the DOF conflict occurred. In order to overcome this problem, I tried to create a wireframe from the reference point (fixed point) but even that didn't help. The corner elements are still getting deformed along the outer edge and I am not able to find a solution for the same.

Any input to solve this problem would be much appreciated.

Thanks in advance! 

Subscribe to Comments for "Picture frame shear test"

Recent comments

More comments


Subscribe to Syndicate